+1 The best mystery anime in recent memory for me. Really dope twist at the end, a bit like, "The Usual Suspects."

Best mystery anime imo is Monster. Re zero and summertime rendering have some cool mystery elements as well and ofc death note is a classic even tho it isn’t much of a mystery

You might really enjoy Undead Girl Murder Farce which is currently airing this season. I didn't have it on my radar at all but picked it up after hearing good things about the first couple of episodes and it's turned into my dark horse pick of the summer.

I was just about to recommend that one. The first episodes were confusing as hell and most of the times I didn't know what was happening but the ending was amazing

I liked this so much more than I expected to. It felt like a love letter to American suspense movies.

They way how every characters story perfectly intertwined with each others and came together at the end was extremely well executed

hmm Lord of mysteries? It's airing rn and I would recommend watching with dub for most people. It's ending soon and the overview for season 1 is great so far. Highly recommended.

Apothecary diaries. Psychopass.

Ron Kamohashi's Forbidden Deductions

/u/Todaz

Gosick 

Sakurako-san no Ashimoto ni wa Shitai ga Umatteiru (Beautiful Bones -Sakurako's Investigation)

Majin Tantei Nougami Neuro 

Detective Conan 

Karakuri Zoushi Ayatsuri Sakon

Kindaichi Shounen no Jikenbo 

Ghost Hunt 

You simply will not find anything as good as monster, that's just how it is

Psycho pass has a murderer and mystery stuff, but they show who the killer is.

Erased, steins gate, shiki, shinsekai yori and b the beginning. They should work well for you.

I would highly recommend Psycho Pass (season 1 is enough). Also Paranoia Agent. Not necessarily about a mystery killer, but it is a great psychological thriller and has a lot of the same aspects that make a show with a mystery killer so great.

You're probably looking for erased, its about a kidnapping mystery I liked it 8/10

Higurashi no Naku Koro ni is exactly what you're looking for. Although the anime is also good, I'd recommend the visual novel more for tighter storytelling, characterization and more of a true horror vibe than "crazy cute anime girls slashing people" reputation that the anime adaptation has given it.

B the Beginning, Ajin, Baccano, AOT, Future Diary, Deadman Wonderland, Gosick, Berserk, Spiral, King's Game, Gantz, Inuyashiki

I really liked Another if you want some horror/gore with your mystery.

Summertime Render is a relatively newer one, but I adored it. I don't gush often, but this is one I had to get my buddy to watch.

I was also a huge fan of Erased. I pretty much predicted the plot twist towards the end, but it didn't make it any less enjoyable to watch throughout. This is a bit more surreal and feelsy of an option.

Ergo Proxy

Ghost in the Shell

Ghost in the Shell Stand Alone Complex

Ghost in the Shell Arise

The Perfect Insider

Perfect Blue

Darker Than Black

Monster

Psycho-Pass

Paprika

Gleipnir

Houseki No Kuni (best characters imo)

Hyouka. It's a mystery genre it is most beautiful potrayed form of animation. It's one of my favourites of all time sad there is only one season

Odd Taxi. Go watch the 13 episodes and all the audio dramas (I believe the audio drama with english sub is on youtube).
It's one of the most complex 1-cour anime to have existed.

And out of the multiple mysteries they build up on the show one mystery turned out to be a joke. A pretty good joke actually.

edit: this post got the most upvote atm despite other comments mentioning many classics and more popular titles. I'm happy to see Odd Taxi getting LOT of love.

I recommend watching the show without any expectations. I watched Odd Taxi bc of glowing reviews and ended up disappointed. It’s not that bad, 7/10 imo, just not exceptional like some praise it to be. 

I didn’t like MC and half the characters. MC comes across as self righteous and knows everything while droning on in monotone. 

Hyouka is great, but it's way more slice of life-ish and not a crazy mystery anime like Death Note or anything

Gosick

erased

• Shin Sekai Yori

• Another

More psychological:

• Ergo Proxy

• Psycho Pass

surprised that no one is recommending the Kara no Kyoukai series. Top tier mystery both episodically, and with overarching story.

Psycho Pass is one of my favorite anime ever. It's got a mix of action, mystery and philosophy in a cyberpunk setting. Admittedly the 2nd season is pretty weak compared to the first but the movies and 3rd season that come afterwards are a lot better.

Monster

Another

Erased

I have:

• "Is there any crime/mystery/thriller anime you'd recommend?" (r/anime; 15 March 2025)—longish

See also: flair_name: "What to Watch?" Mystery in r/anime

https://preview.redd.it/pjvslc4wppge1.jpeg?width=1000&format=pjpg&auto=webp&s=2bfcb3e4e4c78bf5b74bc002398d7394eeaff1df

Detective Conan, or Case Closed depending on which you know it by, is easily hands down what should be the winner here.

Death Note's partially mystery, but that's really not the focus 'cause it ain't mysterious when you already know both sides.

Heavenly Delusion

This is the way. Great show.

monster 2007

death note

parasyte

darker than black

black clover

terror in resonance

pycho pass

Erased is great. And just 12 episodes.

Migi and Dali. Highly underrated. Don't get fooled by the first 3 episodes.

Summer Time rendering. Great.

Unsure about best, but Deadman Wonderland and Shiki were pretty good.

Baccuno!

Thriller:

• Madoka Magica
• Tekkonkinkreet
• Steins;gate
• Flowers of evil

Mystery:

• The case of Hana and Alice
• Girls' last tour
• Night on the galactic railroad
• Monogatari series + Kubikiri cycle
• Haruhi disappearance
• Land of the lustrous
• Mushishi
• When Marnie was there
• Made in abyss
• Apothecary diaries

These are basically all my 8s and 9s, and I also like a ton of other shows/movies, but wouldn't call them hard favorites.